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102222320 = 2451996421
BaseRepresentation
bin1100001011111…
…00100111110000
321010100102122212
412011330213300
5202132103240
614050551252
72350606154
oct605744760
9233312585
10102222320
115277a162
122a298528
13182411a5
14d80d064
158e93165
hex617c9f0

102222320 has 40 divisors (see below), whose sum is σ = 238898400. Its totient is φ = 40677120.

The previous prime is 102222301. The next prime is 102222331. The reversal of 102222320 is 23222201.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 102222295 and 102222304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12710 + ... + 19130.

It is an arithmetic number, because the mean of its divisors is an integer number (5972460).

Almost surely, 2102222320 is an apocalyptic number.

102222320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102222320 is an abundant number, since it is smaller than the sum of its proper divisors (136676080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102222320 is a wasteful number, since it uses less digits than its factorization.

102222320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6633 (or 6627 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 102222320 is about 10110.5054275244. The cubic root of 102222320 is about 467.5720879808.

Adding to 102222320 its reverse (23222201), we get a palindrome (125444521).

The spelling of 102222320 in words is "one hundred two million, two hundred twenty-two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 199 398 796 995 1592 1990 3184 3980 6421 7960 12842 15920 25684 32105 51368 64210 102736 128420 256840 513680 1277779 2555558 5111116 6388895 10222232 12777790 20444464 25555580 51111160 102222320